Note 388 — Chapter XLVI · TYPES OF STRUCTURE IN THE ACID ROCKS—BOSSES
Reading edition
Edin. New Phil. Jour. xl. p. 78.
[389] Von Buch, Geognostische Beobachtungen auf Reisen durch Deutschland und Italien, vol. ii. (1809) p. 245; Scrope, Geology and Extinct Volcanoes of Central France, 2nd edit. p. 68. Von Buch regarded the external form of this Puy as having been determined by its internal structure.